Reverse DNS Lookup with Dig
Reverse DNS, in simple explanation it means that resolve your IP address into hostname. Nowaday it became a must have requirement for mail server’s IP address. It is also one of the method to determine your mail server IP is…
How to do Word Count on TextMate
How many “words” of code you written on TextMate? Try this shortcut to count total word in TextMate Ctrl + Shift + N
How to Change Timezone in FreeBSD
By default, FreeBSD is configured with UTC timezone. In order to localize your timezone, follow the steps below. 1. cd /usr/share/zoneinfo 2. cp Asia/Hong_Kong /etc/localtime Now the local time zone has been configure, lets get the updated time and date…
How to Lock Your Machine and Display Application Screen
We have a couple monitoring applications running on our Linux desktop. To monitor server health, graph utilization through various network monitoring systems. Usually monitoring application required authentication and it will be a security issue if you left your Linux desktop…
How to Enable Suidperl in FreeBSD
Enable Suidperl In FreeBSD Due to security issues, by default Perl installation in FreeBSD does not compiles with SUIDPERL. There are 2 ways to enable SUIDPERL in FreeBSD. First, it make it a “global” configuration in /etc/make.conf, so whenever there…
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